Excises of Eloquent JavaScript 4th edition. Chapter 04 Problem 02. https://eloquentjavascript.net/04_data.html#i_6xTmjj4Rf5

Eloquent JavaScript 0402 Reversing an array.js

// Your code here.
const reverseArray = (arr) => {
  const ans = [];
  for (let i = arr.length - 1; i >= 0; i--) {
    ans.push(arr[i]);
  }
  return ans;
}

const reverseArrayInPlace = (arr) => {
  for (let i = 0, j = arr.length - 1; i < j; i++, j--) {
    let temp = arr[i];
    arr[i] = arr[j];
    arr[j] = temp;
  }
}

console.log(reverseArray(["A", "B", "C"]));
// → ["C", "B", "A"];
let arrayValue = [1, 2, 3, 4, 5];
reverseArrayInPlace(arrayValue);
console.log(arrayValue);
// → [5, 4, 3, 2, 1]